GU LED spacer for nano aquarium

This part is 10mm spacer for LED which I used to light on Nano Aquarium.

This spacer make space for better cooling the LED and also not transferring whole heat to aquarium top glass (useable in summer). From my tests, 1-2 LEDs are enough for 30L nano aquarium lighting. I used approx 2.5-3W LEDs.

Space size of LED is "GU", but not every manufacturer have precise dimensions to fit this spacer.

Note. On model I used not-mine model of "GU LED" from Warehouse.